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Finding the Fourth Proportional to 40,176, 60,185.55 and 19,086.02

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Solution

The fourth proportional to 40,176, 60,185.55 and 19,086.02 is: 28,591.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,176 : 60,185.55 = 19,086.02 : x
  2. Step 2: Convert to fraction form
    40,176/60,185.55 = 19,086.02/x
  3. Step 3: Cross multiply
    40,176x = 60,185.55 × 19,086.02
  4. Step 4: Simplify right side
    40,176x = 1,148,702,611.01
  5. Step 5: Solve for x
    x = 1,148,702,611.01/40,176
  6. Step 6: Final answer
    x = 28,591.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.